/* ============================================
   FINANCE SUITE — Base Styles & Typography
   ============================================ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-primary);
  line-height: var(--leading-normal);
  font-size: var(--text-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  letter-spacing: -0.022em;
  /* Apple-style subtle background */
  background-image:
    radial-gradient(ellipse 60% 50% at 20% 20%, rgba(0, 122, 255, 0.04) 0%, transparent 70%),
    radial-gradient(ellipse 50% 60% at 80% 30%, rgba(52, 199, 89, 0.03) 0%, transparent 70%),
    radial-gradient(ellipse 40% 50% at 50% 80%, rgba(0, 122, 255, 0.02) 0%, transparent 70%);
  background-attachment: fixed;
}

/* ---- Typography System ---- */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
}

h1 { font-size: var(--text-3xl); letter-spacing: -0.02em; }
h2 { font-size: var(--text-2xl); letter-spacing: -0.01em; }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

p {
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-hover);
}

/* ---- Forms & Inputs Base ---- */
input, select, textarea, button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-hover);
  border-radius: var(--radius-pill);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ---- Selection ---- */
::selection {
  background-color: var(--accent-muted);
  color: var(--accent);
}

/* ---- Utility Classes ---- */
.text-primary { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-inverse { color: var(--text-inverse) !important; }
.text-accent { color: var(--accent) !important; }

.text-success { color: var(--color-success) !important; }
.text-danger { color: var(--color-danger) !important; }
.text-warning { color: var(--color-warning) !important; }
.text-info { color: var(--color-info) !important; }

.text-center { text-align: center !important; }
.text-right { text-align: right !important; }
.text-left { text-align: left !important; }

.font-medium { font-weight: var(--weight-medium) !important; }
.font-semibold { font-weight: var(--weight-semibold) !important; }
.font-bold { font-weight: var(--weight-bold) !important; }
.font-mono { font-family: var(--font-mono) !important; }

.uppercase-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
}

.hidden { display: none !important; }
.invisible { visibility: hidden !important; }

.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }

.w-full { width: 100%; }
.h-full { height: 100%; }

/* Layout Grid Utilities */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

@media (max-width: 1024px) {
  .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}